The Enseignements of Louis IX to his daughter Isabelle
Les Enseignements de saint Louis à sa fille Isabelle, reine de Navarre
Chère fille, pour ce que je croi que tu retendras plus volontiers de moi que de plusieurs autres
Our renderingDear daughter, because I believe you will more readily hold fast what comes from me than from many others.
What it is
A companion piece to the Enseignements for Philip, this shorter text was written by Louis IX for his daughter Isabelle, queen of Navarre (1241–1271), and is phrased throughout in the direct imperative: love God, pray daily, confess your sins, conduct yourself uprightly. Louis explains in the opening lines that he believed his instructions would be retained more willingly precisely because they came from him through love rather than from a schoolmaster. The text survives in multiple manuscripts and was edited from the records of the Société de l'Histoire de France. Together with the Enseignements for Philip, it shows Louis applying the same Franciscan-inflected spirituality to both his son's governance and his daughter's personal sanctification.
Why it still matters
The imperative simplicity of Louis's counsel — love God, confess regularly, pray without ceasing — makes this short text an immediately usable personal rule of life, particularly accessible for lay Christians seeking a royal saint's model.
Kept alongside
The Enseignements of Louis IX to his son Philip
Les Enseignements de saint Louis à son fils Philippe
Written in Louis IX's own hand for his eldest son and heir Philip (the future Philip III) around 1267–1268, three years before Louis died on crusade, these instructions address prayer, daily confession, devotion, justice, and the conduct of Christian kingship in a tone of direct paternal love. The text opens: 'To his dear eldest son Philip, greetings and paternal affection.' Although Joinville later incorporated a version into his Vie de saint Louis, scholars have established that Joinville substantially altered Louis's actual words; the primitive text was recovered and published by Henri-François Delaborde in the Bibliothèque de l'École des Chartes in 1912. As a first-person document of royal spirituality composed near the end of Louis's life, it has no peer in the Capetian corpus.
De eruditione filiorum nobilium (On the Education of Noble Children)
De eruditione filiorum nobilium
Commissioned by Queen Marguerite of Provence from the Dominican encyclopedist Vincent of Beauvais — who served as lector in theology at Royaumont Abbey near the royal court and enjoyed direct Capetian patronage — this was the first systematic pedagogical manual for noble children in the Latin West and the first to address the educational needs of noble women directly. Written to guide the tutors of Louis IX's own children, it grounds its pedagogy in virtue formation, habitual prayer, and scriptural study drawn from Augustine, Jerome, and Chrysostom. The work circulated beyond the court and influenced later medieval educational writing; Vincent conceived it as part of a larger projected work on the governance of the French realm. It survives in multiple manuscripts and has been critically edited from the University of Missouri manuscript tradition.
Guibert of Tournai's Letter to Lady Isabelle of France
Epistola exhortatoria ad beatam Isabellam Franciae
A long treatise-letter of spiritual advice addressed to Isabelle of France (sister of Louis IX) by the Franciscan theologian Guibert of Tournai, written before spring 1255 — shortly after Innocent IV had granted Isabelle her own Franciscan confessors. Despite admitting he is unknown to her 'by face, company, family, profession and name,' Guibert addresses her through a sustained meditation on a verse from Psalm 44, urging her toward a life of religious consecration and Franciscan humility. The letter encouraged Isabelle in the foundation of Longchamp and reflects the intimate spiritual counsel available to the highest Capetian women, though it circulated almost exclusively within the Franciscan intellectual and royal court milieu. An English translation by Field, Dalarun, and Field appeared in Franciscan Studies 80(1) in 2022.